Fast Parameter Analysis of the Complex Exponential Signal by the Newton-Raphson Method

This paper proposes the algorithm to analyze parameters of the complex exponential signal by the Newton-Raphson Method. The parameters of complex exponential signal include angular velocity, damping, amplitude, and phase. This algorithm takes the time-domain data as the reference. According to differing positions on the complex plane, the relative algorithm will be established. The nonlinear equations could be quickly solved by the iterative calculation. This analysis result can demonstrate precise complex exponential parameters. This method has features of fast calculation and simple framework.